https://www.gamespot.com/articles/new-battlefield-1-turning-tides-dlc-dated-for-ps4-/1100-6455131/

Battlefield 1's next expansion Turning Tides starts soon on PlayStation 4, Xbox One, and PC, giving players new maps and a new Operation, along with new weapons and a new Elite Class. The third DLC will be released in two waves, with the first one being set during the 1915 British amphibious invasion of the Gallipoli peninsula.

The "first wave" releases December 11. The first maps are Cape Helles and Achi Baba, which are featured during the new Operation. Turning Tides introduces introduces the new Infiltrator Elite Class. There are also six new weapons and melee weapons that will be added to your arsenal, and you'll also get the chance to rule the waves with an L-Class Destroyer.